Noun | 1. | ![]() genus Lobelia - in some classifications considered the type genus of a separate family Lobeliaceae cardinal flower, Lobelia cardinalis, Indian pink - North American lobelia having brilliant red flowers bladderpod, Lobelia inflata, Indian tobacco - North American wild lobelia having small blue flowers and inflated capsules formerly used as an antispasmodic Lobelia dortmanna, water lobelia - erect perennial aquatic herb of Europe and North America having submerged spongy leaves and pendulous racemes of blue flowers above the water blue cardinal flower, great lobelia, Lobelia siphilitica - tall erect and very leafy perennial herb of eastern North America having dense spikes of blue flowers herb, herbaceous plant - a plant lacking a permanent woody stem; many are flowering garden plants or potherbs; some having medicinal properties; some are pests |